diff options
Diffstat (limited to 'arch/arm64/kernel/signal.c')
| -rw-r--r-- | arch/arm64/kernel/signal.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/arch/arm64/kernel/signal.c b/arch/arm64/kernel/signal.c index 417140cd399b..db3f972f8cd9 100644 --- a/arch/arm64/kernel/signal.c +++ b/arch/arm64/kernel/signal.c @@ -95,8 +95,11 @@ static void save_reset_user_access_state(struct user_access_state *ua_state) ua_state->por_el0 = read_sysreg_s(SYS_POR_EL0); write_sysreg_s(por_enable_all, SYS_POR_EL0); - /* Ensure that any subsequent uaccess observes the updated value */ - isb(); + /* + * No ISB required as we can tolerate spurious Overlay faults - + * the fault handler will check again based on the new value + * of POR_EL0. + */ } } |